CN102168931A - Flat type radiating pipe and manufacturing method thereof - Google Patents
Flat type radiating pipe and manufacturing method thereof Download PDFInfo
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- CN102168931A CN102168931A CN2010101248453A CN201010124845A CN102168931A CN 102168931 A CN102168931 A CN 102168931A CN 2010101248453 A CN2010101248453 A CN 2010101248453A CN 201010124845 A CN201010124845 A CN 201010124845A CN 102168931 A CN102168931 A CN 102168931A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000009833 condensation Methods 0.000 claims abstract description 79
- 230000005494 condensation Effects 0.000 claims abstract description 79
- 239000002243 precursor Substances 0.000 claims description 52
- 239000000843 powder Substances 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 32
- 238000005245 sintering Methods 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000012546 transfer Methods 0.000 abstract description 25
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract 4
- 150000001875 compounds Chemical class 0.000 description 27
- 230000000694 effects Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000011469 building brick Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 229910021392 nanocarbon Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
- F28D15/046—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a flat type radiating pipe and a manufacturing method thereof. The flat type radiating pipe comprises a tube cavity with two closed ends and a tube wall axially surrounding the tube cavity; the tube cavity and the tube wall are axially provided with an evaporation section, a heat insulation section and a condensation section sequentially; the tube cavity is internally provided with a main capillary structure and an auxiliary capillary structure, wherein the main capillary structure contacts with the tube wall of the evaporation section and extends to the heat insulation section of the tube cavity; the auxiliary capillary structure contacts with the tube walls of the heat insulation section and condensation section; in the heat insulation section of the tube cavity, the auxiliary capillary structure is partially covered by the main capillary structure; and a working medium is filled in the tube cavity enclosed by the main capillary structure and the auxiliary capillary structure. The flat type radiator can be used for solving the ponding problem occurring after the radiating pipe is beaten to be very thin; the capillary force of the flat type radiator is improved, the working medium conveying ability is enhanced, and the backflow efficiency of the working medium is improved; and moreover, the composite capillary structure ensures that the heat transfer performance of the radiating pipe is greatly improved, thus the heat transfer efficiency of the flat type radiating pipe is enhanced.
Description
Technical field
The present invention relates to heat dissipation technology, particularly a kind of flat radiating tube and manufacture method thereof.
Background technology
Current electronic product constantly tends to compact direction to be developed, and that heat dissipation problem becomes all the more electronic product in the space that constantly dwindles is important, this just need the heat radiation product move towards compact in, more need higher heat transfer, heat dispersion.
Radiating tube has the advantage of higher heat output because of it, has been widely used in having in the electronic building brick of big caloric value.During radiating tube work, utilize the inner low boiling working media of filling of radiating tube carburation by evaporation behind the heat of the evaporator section absorption heating electronic building brick generation of radiating tube, be with heat to move to condensation segment through the adiabatic section, and condense in condensation segment liquefaction heat is discharged, electronic building brick is dispelled the heat.Working media after this vaporization is back to evaporator section under the effect of radiating tube capillary structure, continue carburation by evaporation and liquefaction and condense, and makes working media in the motion of radiating tube inner loop, and the heat that electronic building brick is produced distributes endlessly.
Capillary structure in the radiating tube can make the working media of radiating tube condensation segment in time be back to the evaporator section of radiating tube.Capillary structure generally can be divided into sintering shape, fiber shape and wire mesh shape etc.Existing radiating tube adopts single capillary structure usually, for example application number is disclosed a kind of radiating tube in 200410015527.8 the Chinese patent, as shown in Figure 1, radiating tube 20 comprises shell 21, capillary structure 22, the main gas passage 23 that is surrounded by capillary structure 22 and the working media (figure does not show) that is filled in main gas passage 23, this shell 21 comprises common material layers 211 and nano carbon material layer 212, and this nano carbon material layer 212 is formed at the outer surface of common material layers 211.Single capillary structure 22 is located at shell 21 inboards of radiating tube 20 or is fitted tightly with shell 21 inboards.
Yet, when radiating tube is flattened especially to very thin the time, situations such as distortion, disintegration appear in capillary structure easily that flatten the flat radiating tube of formation, the ability of its transportation work medium declines to a great extent, and the working media conveying capacity of entire heat dissipation pipe can not obtain fully additional, thereby causes declining to a great extent and the increase of thermal resistance of radiating tube maximal heat transfer amount.
Moreover, when radiating tube adopts single capillary structure, in order to reach certain capillary force, therefore above-mentioned capillary structure itself need have certain thickness, when radiating tube is flattened when very thin, the space of remaining main gas passage is relatively very narrow in the radiating tube, promptly in the axial section of radiating tube, tube chamber width between the capillary structure is relatively very little, radiating tube easily forms ponding in adiabatic section and condensation segment, cause the heat steam of evaporator section can't proper flow to the condensation segment of radiating tube, heat transfer potential is seriously cut down, and greatly reduces the maximal heat transfer amount of radiating tube.
Summary of the invention
The problem that the present invention solves is that radiating tube adopts single capillary structure, and after radiating tube was flattened, radiating tube maximal heat transfer amount can decline to a great extent and thermal resistance can increase; Radiating tube easily forms seeping phenomenon in adiabatic section and condensation segment.
For addressing the above problem, the invention provides a kind of flat radiating tube, comprise the tube chamber of closed at both ends and surround the tube wall of described tube chamber vertically, described tube chamber and tube wall are defined as evaporator section, adiabatic section and condensation segment vertically successively, it is characterized in that, be provided with in the described tube chamber:
Master capillary structure contacts with the tube wall of described evaporator section, and extends to the adiabatic section of tube chamber;
The auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, and in the adiabatic section of tube chamber, the described auxiliary capillary structure of part is covered by described master capillary structure,
Be filled with working media in the tube chamber that described master capillary structure and auxiliary capillary structure are surrounded.
Optionally, the length that covered by described master capillary structure of described auxiliary capillary structure account for described tube chamber adiabatic section length 7%～15%.
Optionally, the material of described tube wall comprises metal, alloy, the macromolecular material that thermal conductivity is high.
Optionally, the tube chamber width between the described master capillary structure is greater than 0.5mm.
Optionally, described master capillary structure is powder sintered shape, is formed by the powder particle sintering.
Optionally, the diameter range of described powder particle is 0.1mm to 0.18mm.
Optionally, described powder particle is ceramic powder particle or is metal powder granulates.
Optionally, the thickness of described master capillary structure is greater than the auxiliary capillary thickness of structure.
Optionally, the auxiliary capillary structure is a wire mesh shape, is formed by the individual layer silk screen sintering.。
Optionally, described individual layer screen thickness is less than 0.15mm.
Optionally, the material of described individual layer silk screen is a copper
For addressing the above problem, the present invention also provides a kind of manufacture method of flat radiating tube, described flat radiating tube is processed by a pipe, described pipe comprises tube chamber and surrounds the tube wall of described tube chamber vertically, the tube chamber of described pipe and tube wall are defined as evaporator section, adiabatic section and condensation segment vertically successively, comprise the steps:
At the adiabatic section and the inboard auxiliary capillary structural material that covers of condensation segment of described tube wall, the described auxiliary capillary structural material of sintering forms auxiliary capillary structure precursor;
In described pipe, insert a tube core, described tube core comprises fills out powder section and positioning section, the described tube wall of powder section and positioning section and described evaporator section and the part auxiliary capillary structure precursor formation packing space of adiabatic section filled out, fill the master capillary structure material to described packing space, the described master capillary structure material of sintering forms the master capillary structure precursor;
Extract described tube core, seal an end of described pipe, fill working media in the tube chamber of described master capillary structure precursor and the encirclement of auxiliary capillary structure precursor, vacuumize and seal the other end of described pipe;
Flatten the pipe of described closed at both ends, form flat radiating tube, have in the tube chamber of described flat radiating tube by described master capillary structure precursor and flattened the auxiliary capillary structure that the back forms by the master capillary structure that forms after flattening with by described auxiliary capillary structure precursor, described master capillary structure contacts with the tube wall of described evaporator section, and extend to the adiabatic section of tube chamber, described auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, in the adiabatic section of tube chamber, the described auxiliary capillary structure of part is covered by described master capillary structure
Optionally, the sintering temperature that forms described auxiliary capillary structure precursor is 850 degree.
Optionally, the sintering temperature that forms described master capillary structure precursor is 950 degree.
Optionally, described master capillary structure material is a powder particle.
Optionally, described auxiliary capillary structural material is the individual layer silk screen.
Compared with prior art, technique scheme has the following advantages:
1. be provided with the compound capillary structure of forming by master capillary structure and auxiliary capillary structure in the flat radiating tube, compare with single capillary structure, compound capillary structure is not easy to occur situations such as distortion, disintegration, thereby compound capillary structure guaranteed the conveying capacity to working media, thereby can prevent declining to a great extent and the increase of thermal resistance of radiating tube maximal heat transfer amount.
2. be provided with the compound capillary structure of forming by master capillary structure and auxiliary capillary structure in the flat radiating tube, described master capillary structure contacts with the tube wall of described evaporator section, described auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, the part that master capillary structure extends to the adiabatic section of tube chamber covers described auxiliary capillary structure, above-mentioned covering design makes two kinds of capillary structures can be good at contact, promptly when the working media of condensation segment end flow to the junction of master capillary structure and auxiliary capillary structure, the part of having only described master capillary structure to extend to the adiabatic section of tube chamber covers described auxiliary capillary structure just can give full play to the advantage of compound capillary structure, improves the radiating tube heat transfer property thereby reach better backflow effect.
3. be provided with the compound capillary structure of forming by master capillary structure and auxiliary capillary structure in the flat radiating tube, wherein, master capillary structure is arranged at the evaporator section of this flat radiating tube, adopt powder sintered capillary structure, the auxiliary capillary structure is arranged at the adiabatic section and the condensation segment of this flat radiating tube, adopt the screen net structure of thinner thickness to replace powder sintered capillary structure, increased adiabatic section and condensation segment volume largely at the gas passage of flat radiating tube, promptly in the axial section of radiating tube, increased the tube chamber width between the auxiliary capillary structure, improved the ponding problem of flat radiating tube in adiabatic section and condensation segment generation, thereby improved the backflow efficient of working media, improved the radiating tube heat transfer property greatly.
Description of drawings
Fig. 1 is the structural representation of a kind of radiating tube of prior art;
Fig. 2 is the axial section schematic diagram of the flat radiating tube of the embodiment of the invention;
Fig. 3 is a flat radiating tube shown in Figure 2 schematic cross-section in the AA direction;
Fig. 4 is a flat radiating tube shown in Figure 2 schematic cross-section in the BB direction;
Fig. 5 is the schematic flow sheet of the flat radiating tube manufacture method of the embodiment of the invention;
Fig. 6 to Figure 12 is the process schematic diagram of making according to flow process shown in Figure 5.
The specific embodiment
The invention provides a kind of NEW TYPE OF COMPOSITE capillary structure radiating tube, this radiating tube main body adopts powder sintered capillary structure, to flatten the back big or in the axial section of radiating tube because of powder sintered capillary structure layer thickness but in order to improve radiating tube, in order to improve tube chamber width between the radiating tube capillary structure relatively very little and the adiabatic section and the condensation segment ponding problem that cause, this invention adopts the screen net structure of capillary structure layer thinner thickness to replace powder sintered structure radiating tube adiabatic section and condensation segment, the volume that has increased adiabatic section and the condensation segment main gas passage after flattening largely is promptly in the axial section of radiating tube, increased the tube chamber width between the capillary structure, improved radiating tube and flattened the ponding problem that produces to very thin back.Improved the backflow efficient of working media, this kind compound capillary structure has improved the radiating tube heat transfer property greatly.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.
Fig. 2 is the axial section schematic diagram of the flat radiating tube of the embodiment of the invention, and Fig. 3 is a flat radiating tube shown in Figure 2 schematic cross-section in the AA direction, and Fig. 4 is a flat radiating tube shown in Figure 2 schematic cross-section in the BB direction.In conjunction with Fig. 2, Fig. 3 and Fig. 4, flat radiating tube 10 comprises tube wall 11 and tube chamber, the closed at both ends of tube chamber, and tube wall 11 is made by the material of tool thermal conductive resins such as copper, aluminium, surrounds tube chamber vertically, and described axially is direction along flat heat radiation tubular axis X.Described flat radiating tube 10 (comprising tube wall 11 and tube chamber) is defined as evaporator section 111, adiabatic end 112 and condensation segment 113 vertically successively.
In conjunction with Fig. 3 and Fig. 4, two flat wall 15 that tube wall 11 comprises the arcwall 16 that is positioned at both sides and connects described arcwall 16.Above-mentioned two flat wall 15 are parallel to each other, and the arc of the arcwall 16 of both sides protrudes and the symmetrical relative both sides that are positioned at two flat wall 15 to the tube chamber outside.
In conjunction with Fig. 3 and Fig. 4, be provided with compound capillary structure in the tube chamber of described flat radiating tube 10, compound capillary structure contacts with the tube wall 11 of flat radiating tube, be used to support flat radiating tube 10, in the present embodiment, the tube wall 11 of compound capillary structure and flat radiating tube 10 is fit-states, can support the tube wall 11 of flat radiating tube 10 preferably, and can improve the capillary force of capillary structure.Compound capillary structure comprises master capillary structure 12 and auxiliary capillary structure 13.As shown in Figure 2, master capillary structure 12 is fitted with the tube wall 11 of described evaporator section 111, and is extended to tube chamber adiabatic section 112; Auxiliary capillary structure 13 is fitted with the tube wall of described adiabatic section 112 and condensation segment 113, and in the adiabatic section 112 of tube chamber, the described auxiliary capillary structure 13 of part is covered by described master capillary structure 12.
All be main gas passage 14 in the tube chamber except master capillary structure 12 and auxiliary capillary structure 13, promptly main gas passage 14 comprises evaporator section 111, adiabatic section 112 and the condensation segment 113 of the tube chamber that master capillary structure 12 and auxiliary capillary structure 13 are surrounded, as shown in Figure 2, so in the axial section of flat radiating tube 10, main gas passage 14 greater than the width W of main gas passage at evaporator section 111, is full of working media (not shown) in the main gas passage 14 in the width W 1 of condensation segment 113.
As shown in Figure 2, the length of flat radiating tube 10 is L, can be 80mm to 400mm in the present embodiment, be preferably 200mm, flat radiating tube 10 comprises evaporator section 111 vertically, adiabatic section 112 and condensation segment 113, wherein evaporator section 111 is positioned at an end of flat radiating tube 10, the length of evaporator section 111 is 1/3rd of flat radiating tube 10 length L, condensation segment 113 is positioned at the other end of flat radiating tube 10, the length of condensation segment 113 is 1/3rd to 1/2nd of flat radiating tube 10 length L, and the length of the condensation segment 113 of present embodiment can be 1/3rd of flat radiating tube 10 length L; Adiabatic section 112 connects the evaporator section 111 and the condensation segment 113 of flat radiating tube 10, therefore the length of adiabatic section 112 is that the length L of whole flat radiating tube 10 deducts the length of evaporator section 111 and the length of condensation segment 113, and the length of adiabatic section 112 can be 1/3rd of flat radiating tube 10 length L in the present embodiment.Flat radiating tube 10 is divided into tube wall 11 and tube chamber two parts, and the heat that heat generating component produces can be passed to tube chamber by tube wall 11.
As shown in Figure 3 and Figure 4, the thickness H of flat radiating tube 10 can be less than or equal to 1.5mm, at present embodiment is 1.5mm, tube wall 11 thickness are h, the h of present embodiment can be 0.3mm, the tube wall 11 of flat radiating tube 10 is divided into flat wall 15 and arcwall 16, two flat wall 15 are parallel to each other, the arc of two arcwalls 16 of flat radiating tube 10 protrudes and the symmetrical relative both sides that are positioned at two flat wall 15 to the tube chamber outside, one of them flat wall 15 is connected with two arcwalls 16, and another flat wall 15 also is connected with two arcwalls 16.
As shown in Figure 2; the tube chamber two ends of flat radiating tube 10 are closed; compound capillary structure is positioned at the tube chamber of flat radiating tube 10; compound capillary structure comprises 13 two kinds on master capillary structure 12 and auxiliary capillary structure; master capillary structure 12 is formed by the powder particle sintering; be sintering shape structure, the powder particle that is used for powder sintered processing can or be metal powder granulates such as copper powder etc. for ceramic powder particle.Master capillary structure 12 is fitted with the tube wall of described evaporator section 111, and extends to tube chamber adiabatic section 112; In conjunction with Fig. 2, Fig. 3 and Fig. 4, in the tube chamber adiabatic section 112, extend to the described auxiliary capillary structure 13 in part cover part of the master capillary structure 12 of tube chamber adiabatic section 112, be the surface that master capillary structure 12 is covered in auxiliary capillary structure 13, the length (part of master capillary structure 12 that promptly extends to the adiabatic section 112 of tube chamber covers the length of described auxiliary capillary structure 13) that described master capillary structure 12 covers described auxiliary capillary structure 13 account for described tube chamber adiabatic section 112 length 7%～15%.
Master capillary structure 12 is supporting flat radiating tube 10, prevent that flat radiating tube 10 surfaces from producing significantly depression, cause flat radiating tube 10 can produce working media in actual use and be blocked mobile situation, effectively guaranteed main gas passage 14 unimpeded of flat radiating tube 10.Another effect of master capillary structure 12 is to produce stronger capillary force, the working media that flat radiating tube 10 condensation segments 113 is condensed form is back to the evaporator section 111 of flat radiating tube 10 under the effect of master capillary structure capillary force, realize the shuttling movement of working media in flat radiating tube 10, to finish lasting heat radiation to heat generating component.
Auxiliary capillary structure 13 is formed by silk screen sintering, belongs to the wire mesh shape structure.As shown in Figure 2, auxiliary capillary structure 13 is fitted with the tube wall of described adiabatic section 112 and condensation segment 113, the length that is auxiliary capillary structure 13 equals the length of flat radiating tube 10 tube chamber adiabatic sections 112 and the length addition of condensation segment 113, can be 2/3L at present embodiment.In tube chamber adiabatic section 112, the surface of described part auxiliary capillary structure 13 is covered by described master capillary structure 12, in the adiabatic section 112 of tube chamber, the length that described part auxiliary capillary structure 13 is covered by described master capillary structure 12 account for described tube chamber adiabatic section length 7%～15%.The surface of auxiliary capillary structure 13 to the distance of flat radiating tube tube wall 11 less than the surface of master capillary structure 12 distance to flat radiating tube tube wall 11, promptly the thickness of auxiliary capillary structure 13 is less than the thickness of master capillary structure 12.
Auxiliary capillary structure 13 works to support flat radiating tube 10 equally, auxiliary capillary structure 13 also can produce capillary force, because in the present embodiment, the length of auxiliary capillary structure 13 equal the length of condensation segment 113 of flat radiating tube 10 and adiabatic section 112 length and, this auxiliary capillary structure 13 enough capillary forces that can produce help master capillary structure 12 working media of flat radiating tube 10 condensation segments 113 ends to be transported to the evaporator section 111 of flat radiating tube 10 like this, compared to the radiating tube that has single capillary structure, the composite capillary structure 12 of above-mentioned flat radiating tube 10 and 13 effectively improves the heat transfer efficiency of radiating tube.Auxiliary capillary structure 13 is the individual layer silk screen sintering, and thickness can be the individual layer copper mesh in the present embodiment below 0.15mm.Auxiliary capillary structure 13 can guarantee the volume of flat radiating tube 10 main gas passages 14 like this, promptly in the axial section of radiating tube, increased the tube chamber width between the capillary structure, in the present embodiment, as shown in Figure 2, especially the part adiabatic section 112 of flat radiating tube and the width W 1 of the main gas passage of condensation segment 113 have been increased, improved the condensation segment seeping phenomenon that radiating tube causes when flattening to thinner thickness, improve the service efficiency of working media, improved the performance of radiating tube.
As shown in Figure 2, adiabatic section 112 at flat radiating tube 10, the part that described master capillary structure 12 extends to the adiabatic section 112 of tube chamber covers described auxiliary capillary structure 13, be the surface that master capillary structure 12 is covered in auxiliary capillary structure 13, overlay length account for described tube chamber adiabatic section 112 length 7%～15%.In flat radiating tube 10, the covering design that the part that described master capillary structure 12 extends to the adiabatic section 112 of tube chamber covers described auxiliary capillary structure 13 makes two kinds of capillary structures can be good at contact, give full play to the advantage of compound capillary structure, be in the process of the working media of the condensation segment 113 ends evaporator section 111 that flows to flat radiating tube 10, especially when the working media of condensation segment 113 ends flow to the junction of master capillary structure 12 and auxiliary capillary structure 13, in order to reach better backflow effect, make the working media of condensation segment 113 ends better flow to the evaporator section 111 of flat radiating tube 10, master capillary structure 12 is covered in the surface of auxiliary capillary structure 13, and accounts for 7%～15% of described tube chamber adiabatic section 112 length with auxiliary capillary structure 13 overlap lengths.If master capillary structure 12 and auxiliary capillary structure 13 overlapping points or contact point are more after a little while, be unfavorable for that the working media of condensation segment 113 ends flows to the evaporator section 111 of flat radiating tube 10, if master capillary structure 12 and auxiliary capillary structure 13 overlap lengths were greater than 15% o'clock of tube chamber adiabatic section 112 length, the volume of compound capillary structure can occupy the volume of main gas passage, make condensation segment produce the ponding problem easily, the same backflow effect that influences working media influences the lasting heat radiation of 10 pairs of heat generating components of flat radiating tube.
All be main gas passage 14 in flat radiating tube 10 tube chambers except master capillary structure 12 and auxiliary capillary structure 13, therefore, this main gas passage 14 also is flat, the length of main gas passage 14 is the length L of flat radiating tube 10, as shown in Figure 2, the surface of master capillary structure 12 to the distance of flat radiating tube tube wall 11 greater than the surface of auxiliary capillary structure 13 distance to flat radiating tube tube wall 11, be the thickness of the thickness of master capillary structure 12 greater than auxiliary capillary structure 13, so in the axial section of flat radiating tube, main gas passage 14 in the width W 1 of condensation segment 113 greater than the width W of main gas passage 14 at evaporator section 111.Be full of working media in this main gas passage 14, the main gas passage 14 of flat radiating tube 10 at least more than or equal to 0.5mm, has guaranteed the conveying capacity to working media in the width W of evaporator section 111, can effectively promote the suction exothermic effect of working media.
Above-mentioned working media is the liquid hydraulic fluid that heat of vaporization height, good fluidity, chemical property are stable, boiling point is lower, as water, alcohol, methyl alcohol, acetone etc.Have 2～4 * 10 in the cavity of flat radiating tube 10
-3The negative pressure of Pa.The start principle of above-mentioned working media is: flat radiating tube 10 is ultra-thin shape radiating tube, after being heated, the evaporator section 111 of flat radiating tube 10 conducts to flat radiating tube 10 internal work media, working media changes gaseous state into by liquid state in the tube chamber of flat radiating tube 10 phase transformation effect makes a large amount of heat by with the evaporator section 111 from flat radiating tube 10, it transfers to the condensation segment 113 of flat radiating tube 10 via the adiabatic section 112 of flat radiating tube 10, and working media steam condenses into liquid working media after flowing to these condensation segment 113 heat releases under the small pressure reduction, heat is discharged, finish heat radiation heat generating component.
Compound capillary structure 12 and 13 has guaranteed that effectively the main gas passage 14 of flat radiating tube 10 has enough spaces, promptly the master capillary structure 12 of this flat radiating tube adopts powder sintered capillary structure, part adiabatic section 112 adopts the copper mesh structure of capillary structure layer thinner thickness to replace powder sintered structure with condensation segment 113, adiabatic section 112 and the volume of condensation segment 113 have been increased largely at the main gas passage 14 of flat radiating tube 10, therefore, compound capillary structure produces capillary force is transported to condensed liquid working media flat radiating tube 10 from the condensation segment 113 of flat radiating tube evaporator section 111 jointly, improved flat radiating tube 10 in the adiabatic section 112 and the ponding problem that is easy to generate of condensation segment 113, can effectively promote the suction exothermic effect of working media, and then improve the overall performance of flat radiating tube.
According to another aspect of the present invention, a kind of manufacture method of above-mentioned flat radiating tube also is provided, described flat radiating tube is processed by a pipe, described pipe comprises tube chamber and surrounds the tube wall of described tube chamber vertically, the tube chamber and the tube wall of described pipe are defined as evaporator section, adiabatic section and condensation segment vertically successively, as shown in Figure 5, described manufacture method comprises step:
S301, at the adiabatic section and the inboard auxiliary capillary structural material that covers of condensation segment of described tube wall, the described auxiliary capillary structural material of sintering forms auxiliary capillary structure precursor;
S302, in described pipe, insert a tube core, described tube core comprises fills out powder section and positioning section, the described tube wall of powder section and positioning section and described evaporator section and the part auxiliary capillary structure precursor formation packing space of adiabatic section filled out, fill the master capillary structure material to described packing space, the described master capillary structure material of sintering forms the master capillary structure precursor;
S303 extracts described tube core, seals an end of described pipe, fill working media in the tube chamber that master capillary structure precursor and auxiliary capillary structure precursor surround, vacuumize and seal the other end of described pipe;
S304, flatten the pipe of described closed at both ends, form flat radiating tube, have in the tube chamber of described flat radiating tube by described master capillary structure precursor and flattened the auxiliary capillary structure that the back forms by the master capillary structure that forms after flattening with by described auxiliary capillary structure precursor, described master capillary structure contacts with the tube wall of described evaporator section, and extend to the tube chamber adiabatic section, described auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, in the adiabatic section of tube chamber, the described auxiliary capillary structure of part is covered by described master capillary structure.
The flat radiating tube of present embodiment is processed by a pipe, and described pipe comprises tube chamber and surround the tube wall of described tube chamber vertically that the tube chamber of described pipe and tube wall are defined as evaporator section, adiabatic section and condensation segment vertically successively.Before making flat radiating tube, at first need the inside of described pipe will be removed totally, remove burr, then pipe is put into and uses ultrasonic wave to clean in the dilute sulfuric acid.After cleaning up, just can obtain all very smooth, an oxide-free pipe of inside and outside wall.This pipe is made by the material of tool thermal conductive resins such as copper, aluminium.The length of pipe is L, and the length range of pipe can be 80mm to 400mm in the present embodiment, is preferable with 200mm.As shown in Figure 6, the inside radius of pipe 10 ' can be 2.7mm in the present embodiment, and the outer radius of pipe 10 ' in the present embodiment can be for equaling 3mm, and pipe 10 ' comprises tube chamber and tube wall 11, the difference of interior outer radius is exactly the thickness of tube wall 11, and present embodiment is 0.3mm.
In the present embodiment, corresponding to figure 6, be followed successively by evaporator section 111, adiabatic section 112 and condensation segment 113 vertically from an end of pipe 10 '.The length of evaporator section 111 is 1/3rd of this pipe 10 ' length L, the length of the evaporator section 111 of present embodiment can be 1/3rd of pipe 10 ' length, condensation segment 113 is positioned at the other end of this pipe 10 ', the length of condensation segment 113 is 1/3rd to 1/2nd of this pipe 10 ' length L, the length of the condensation segment 113 of present embodiment can be 1/3rd of pipe 10 ' length, adiabatic section 112 connects evaporator section 111 and condensation segment 113, therefore the length of adiabatic section 112 deducts the length of evaporator section 111 and the length of condensation segment 113 for the length of this pipe 10 ', and the length of adiabatic section 112 also can be 1/3rd of this pipe 10 ' length in the present embodiment.Fig. 6 to Figure 12 is elaborated to above-mentioned manufacture method below in conjunction with Fig. 6 to Figure 12 for the schematic diagram of flat radiating tube structure manufacture process among the embodiment of manufacture method of the present invention.
At first execution in step S301 covers the described auxiliary capillary structural material formation of auxiliary capillary structural material sintering auxiliary capillary structure precursor in the adiabatic section and the condensation segment inboard of described tube wall.
The auxiliary capillary structural material is inserted pipe 10 ' from an end of pipe, in the present embodiment, described auxiliary capillary structural material can be less than or equal to 0.15mm individual layer silk screen for thickness, this individual layer silk screen is sticked in the tube wall inboard of described adiabatic section 112 and condensation segment 113, and described individual layer silk screen can be the individual layer copper mesh in the present embodiment.The pipe 10 ' that is built-in with the individual layer copper mesh is put into 850 degrees centigrade high temperature sintering furnace, make the inwall sintering of individual layer copper mesh and pipe adiabatic section 112 and condensation segment 113 be in the same place, form auxiliary capillary tubular construction precursor 13 ', as shown in Figure 6, the auxiliary capillary structure precursor 13 ' that forms is fitted with the adiabatic section 112 of tube wall and condensation segment 113, the length of auxiliary capillary structure precursor 13 ' 112 extends to condensation segment 113 from the adiabatic section, can be 2/3rds of described pipe length L at present embodiment.Concrete processing step is well known to those skilled in the art, does not repeat them here.
Execution in step S302 then, in described pipe, insert a tube core, described tube core comprises fills out powder section, positioning section, the described tube wall of powder section and positioning section and described evaporator section and the part auxiliary capillary structure precursor formation packing space of adiabatic section filled out, fill the master capillary structure material to described packing space, the described master capillary structure material of sintering forms the master capillary structure precursor.Fig. 7 is the axial schematic diagram of present embodiment tube core, and tube core 30 is divided into four sections, is followed successively by to add powder section 311, positioning section 312, linkage section 313 and supporting section 314.Tube core 30 plays the mould effect in the manufacturing process of flat radiating tube 10.
As shown in Figure 8, described tube core 30 is inserted in the pipe 10 ' from pipe 10 ' condensation segment 113, make the supporting section 314 of tube core 30 prop up the end of pipe 10 ', guarantee that pipe 10 ' does not have slip with respect to tube core 30 at pipe 10 ' axial direction near condensation segment 113.Positioning section 312 also fits tightly with the part adiabatic section 112 of pipe 10 ', as shown in Figure 8, describedly fills out powder section 311 and positioning section 312 forms packing space 12 with the tube wall of described evaporator section 111 and the part auxiliary capillary structure precursor 13 ' of adiabatic section 112 ".The length of the evaporator section of pipe 10 ' is La, described packing space 12 " length be Lb, the length difference of La and Lb account for described pipe tube chamber adiabatic section 112 length 7%～15%.
As shown in Figure 9, to described packing space 12 " fill the master capillary structure material, described master capillary structure material can be powder particle, described powder particle comprises ceramic powder particle and is metal powder granulates.In the present embodiment, choose copper powder, the particle diameter scope of copper powder is 0.1mm～0.18mm.If the particle diameter of copper powder is less than 0.1mm, the penetration of the master capillary structure that the copper powder sintering forms makes the heat flux of flat radiating tube reduce inadequately; If the particle diameter of copper powder is greater than 0.18mm, the capillary force deficiency of the master capillary structure that the copper powder sintering forms makes the working media of condensation segment 113 can't normally be back to evaporator section 111.Positioning section 312 need fit tightly with the part adiabatic section 112 of pipe 10 ', prevents that the copper powder particle of inserting in the pipe from leaking to the zone of positioning section below 312, guarantees that copper powder particle is all at packing space 12 " in.Insert in the 950 celsius temperature stoves and carry out sintering filling out pipe 10 ' behind the powder, described copper powder particles sintering is formed master capillary structure precursor 12 ', master capillary structure precursor 12 ' tube core 30 add the powder section and auxiliary capillary structure precursor 13 ' is overlapping, auxiliary capillary structure precursor 13 ' contacts at the tube wall of this section with the part adiabatic section, and auxiliary capillary structure precursor 13 ' also contacts with master capillary structure precursor 12 ' in this section.This moment master capillary structure precursor 12 ' surface to the vertical range of tube wall greater than the surface of auxiliary capillary structure precursor 13 ' vertical range to tube wall, promptly the thickness of master capillary structure precursor 12 ' is greater than the thickness of auxiliary capillary structure precursor 13 '.Concrete processing step is well known to those skilled in the art, does not repeat them here.
Execution in step S303 extracts described tube core then, seals an end of described pipe, fill working media in the tube chamber that master capillary structure precursor and auxiliary capillary structure precursor surround, vacuumize and seal the other end of described pipe.
Specifically, sintering is intact fill out pipe 10 ' behind the powder after, uses an aid that pipe 10 ' is clamped, tool using is extracted tube core 30 out, and an end of pipe one end of condensation segment (for example near) is sealed filling working media in pipe 10 '.Above-mentioned working media is the liquid hydraulic fluid that heat of vaporization height, good fluidity, chemical property are stable, boiling point is lower, as water, alcohol, methyl alcohol, acetone etc.Concrete processing step is well known to those skilled in the art, does not repeat them here.
To be pumped into 2～4 * 10 in the pipe 10 ' with vaccum-pumping equipment
-3The negative pressure of Pa helps the circulation of working media in the heat radiation process.The other end (present embodiment is the end near evaporator section) with pipe 10 ' carries out the tube sealing PROCESS FOR TREATMENT then, forms radiating tube as shown in figure 10.Figure 11 is the generalized section of the evaporator section of the described radiating tube of Figure 10 AA direction perpendicular to axial direction; Figure 12 is the generalized section of the condensation segment of the described radiating tube of Figure 10 BB direction perpendicular to axial direction.The concrete grammar of evacuation process and tube sealing technology is well known to those skilled in the art, does not repeat them here.
Execution in step S304 then, flatten the pipe of described closed at both ends, form flat radiating tube, have in the tube chamber of described flat radiating tube by described master capillary structure precursor and flattened the auxiliary capillary structure that the back forms by the master capillary structure that forms after flattening with by described auxiliary capillary structure precursor, described master capillary structure contacts with the tube wall of described evaporator section, and extend to the tube chamber adiabatic section, described auxiliary capillary structure, contact with the tube wall of described adiabatic section and condensation segment, and in the adiabatic section of tube chamber, being covered of the described auxiliary capillary structure of part by described master capillary structure.
Flatten the pipe 10 ' of described closed at both ends, form flat radiating tube 10.In conjunction with Fig. 3 and Figure 11, Fig. 4 and Figure 12, the thickness of pipe 10 ' is 2R, present embodiment can be 6mm, the thickness H of flat radiating tube 10 in the present embodiment, can be 1.5mm less than 1.6mm.The tube wall of described pipe 10 ' is flattened the tube wall that the back forms flat radiating tube, and the tube chamber of described pipe 10 ' is flattened the tube chamber that the back forms flat radiating tube 10.After pipe 10 ' is flattened, the tube wall of described pipe 10 ' is flattened the tube wall 11 that the back forms flat radiating tube, wherein, the tube wall 11 of described flat radiating tube comprises arcwall 16 that is positioned at both sides and the flat wall 15 that connects described arcwall, is provided with in the tube chamber of described flat radiating tube 10 by described master capillary structure precursor 12 ' and is flattened the auxiliary capillary structure 13 that the back forms by the master capillary structure 12 that forms after flattening with by described auxiliary capillary structure precursor 13 '.
With reference to figure 2, described master capillary structure 12 contacts with the tube wall of described evaporator section, and extend to tube chamber adiabatic section 112, adiabatic section 112 at tube chamber, master capillary structure 12 is covered on the surface of part auxiliary capillary structure 13, and described auxiliary capillary structure 13 contacts with the tube wall of described adiabatic section and condensation segment, and in the adiabatic section 112 of tube chamber, the surface of the described auxiliary capillary structure 13 of part is covered by described master capillary structure 12.The overlap length of master capillary structure 12 and auxiliary capillary structure 13 account for described tube chamber adiabatic section 112 length 7%～15%.The thickness of master capillary structure 12 is greater than the thickness of auxiliary capillary structure 13, thus in the axial section of flat radiating tube, main gas passage 14 in the width W 1 of condensation segment 113 greater than the width W of main gas passage 14 at evaporator section 111.The concrete grammar of flattening above-mentioned pipe 10 ' is well known to those skilled in the art, does not repeat them here.
The measurement parameter of radiating tube performance is average maximal heat transfer amount Q
Max(unit: W) with average thermal resistance R
Th(unit: ℃/W).Average maximal heat transfer amount Q
MaxBe the maximal heat transfer amount of radiating tube when operating temperature is 50 ℃; Evenly heat resistance R
ThFor the temperature gap of the evaporator section mean temperature of radiating tube and condensation segment mean temperature again and Q
MaxRatio.Average maximal heat transfer amount Q
MaxValue big more, illustrate that the performance of radiating tube is good more, average thermal resistance R
ThValue more little, illustrate that the performance of radiating tube is good more; Vice versa.
Two kinds of radiating tubes before flattening are compared the radiating tube of finding to have compound capillary structure is lower than the radiating tube thermal resistance with traditional single capillary structure, heat transfer property is strong.
Specifically, with a specification is that (diameter is 6mm to φ 6 * 200mm, length is 200mm) the radiating tube 100 ' with single powder sintered capillary structure and the pipe 10 ' of the compound capillary structure of forming by master capillary structure precursor 12 ' and auxiliary capillary structure precursor 13 ' of a same size of making according to the manufacture method in the embodiments of the invention compare, as shown in table 1.
The performance comparison form of table 1 radiating tube 100 ' and pipe 10 '
As shown in table 1, have pipe 10 ' the available average maximal heat transfer amount Q of master capillary structure precursor and auxiliary capillary structure precursor
MaxExceed than radiating tube 100 ' with single powder sintered capillary structure about 25%, the evenly heat resistance R of pipe 10 '
ThLess than radiating tube 100 ', the pipe 10 ' heat transfer property that is provided with compound capillary structure significantly promotes.
If above-mentioned two types radiating tube is flattened the flat radiating tube of formation, a kind of for the flat radiating tube with compound capillary structure of better embodiment of the present invention, another is the identical flat radiating tube with single capillary structure of specification, and the former is lower than the latter's thermal resistance, heat transfer property is strong.
Specifically, it is thick that a specification is that the conventional powder sintering post radiating tube of φ 6 * 200mm (diameter is 6mm, and length is 200mm) is flattened to 1.5mm, forms flat radiating tube 100.According to the manufacture method in the embodiments of the invention pipe of a same size (diameter is 6mm, and length is 200mm) is manufactured the flat radiating tube 10 of the thick compound capillary structure of forming by master capillary structure 12 and auxiliary capillary structure 13 of 1.5mm then.The performance of flat radiating tube 100 with flat radiating tube 10 compared, as shown in table 2.
The performance comparison form of flat radiating tube 100 of table 2 and flat radiating tube 10
As shown in table 2, have the flat radiating tube 10 available average maximal heat transfer amount Q of compound capillary structure
MaxExceed than flat radiating tube 100 with single capillary structure about 140%, the evenly heat resistance R of flat radiating tube 10
ThTherefore less than flat radiating tube 100, having has the flat radiating tube of compound capillary structure 10 heat transfer properties to compare the flat radiating tube 100 with single capillary structure significantly to promote.
And, can see that from table 1 and table 2 radiating tube with compound capillary structure is littler by the changing value of the average maximal heat transfer amount before and after flattening than the radiating tube with single capillary structure by the changing value of the average maximal heat transfer amount before and after flattening; Radiating tube with compound capillary structure is littler by the changing value of the average thermal resistance before and after being flattened than the radiating tube with single capillary structure by the changing value of the average thermal resistance before and after being flattened, and the thermal loss that promptly forms in the process of flattening than the radiating tube with single capillary structure in the process of flat radiating tube of the radiating tube of explanation with compound capillary structure is little thus.
Though the present invention with preferred embodiment openly as above; but it is not to be used for limiting claim; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (15)
1. flat radiating tube comprises the tube chamber of closed at both ends and surrounds the tube wall of described tube chamber vertically, and described tube chamber and tube wall are defined as evaporator section, adiabatic section and condensation segment vertically successively, it is characterized in that, have in the described tube chamber:
Master capillary structure contacts with the tube wall of described evaporator section, and extends to the adiabatic section of tube chamber;
The auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, and in the adiabatic section of tube chamber, the described auxiliary capillary structure of part is covered by described master capillary structure,
Be filled with working media in the tube chamber that described master capillary structure and auxiliary capillary structure are surrounded.
2. flat radiating tube as claimed in claim 1 is characterized in that, the length that described auxiliary capillary structure is covered by described master capillary structure account for described tube chamber adiabatic section length 7%～15%.
3. flat radiating tube as claimed in claim 1 is characterized in that, the tube chamber width between the described master capillary structure is greater than 0.5mm.
4. flat radiating tube as claimed in claim 1 is characterized in that, described master capillary structure is powder sintered shape, is formed by the powder particle sintering.
5. radiating tube as claimed in claim 4 is characterized in that, the diameter range of described powder particle is 0.1mm to 0.18mm.
6. flat radiating tube as claimed in claim 4 is characterized in that, described powder particle is ceramic powder particle or is metal powder granulates.
7. flat radiating tube as claimed in claim 1 is characterized in that the thickness of described master capillary structure is greater than the auxiliary capillary thickness of structure.
8. flat radiating tube as claimed in claim 1 is characterized in that, described auxiliary capillary structure is a wire mesh shape, is formed by the individual layer silk screen sintering.
9. flat radiating tube as claimed in claim 8 is characterized in that the thickness of described individual layer silk screen is less than or equal to 0.15mm.
10. flat radiating tube as claimed in claim 8 is characterized in that, the material of described individual layer silk screen is a copper.
11. the manufacture method of a flat radiating tube, described flat radiating tube is processed by a pipe, described pipe comprises tube chamber and surrounds the tube wall of described tube chamber vertically, the tube chamber of described pipe and tube wall are defined as evaporator section, adiabatic section and condensation segment vertically successively, it is characterized in that, comprise the steps:
At the adiabatic section and the inboard auxiliary capillary structural material that covers of condensation segment of described tube wall, the described auxiliary capillary structural material of sintering forms auxiliary capillary structure precursor;
In described pipe, insert a tube core, described tube core comprises fills out powder section and positioning section, the described tube wall of powder section and positioning section and described evaporator section and the part auxiliary capillary structure precursor formation packing space of adiabatic section filled out, fill the master capillary structure material to described packing space, the described master capillary structure material of sintering forms the master capillary structure precursor;
Extract described tube core, seal an end of described pipe, fill working media in the tube chamber of described master capillary structure precursor and the encirclement of auxiliary capillary structure precursor, vacuumize and seal the other end of described pipe;
Flatten the pipe of described closed at both ends, form flat radiating tube, have in the tube chamber of described flat radiating tube by described master capillary structure precursor and flattened the auxiliary capillary structure that the back forms by the master capillary structure that forms after flattening with by described auxiliary capillary structure precursor, described master capillary structure contacts with the tube wall of described evaporator section, and extend to the adiabatic section of tube chamber, described auxiliary capillary structure contacts with the tube wall of described adiabatic section and condensation segment, in the adiabatic section of tube chamber, the described auxiliary capillary structure of part is covered by described master capillary structure.
12. the manufacture method of flat radiating tube as claimed in claim 11 is characterized in that, the sintering temperature that forms described auxiliary capillary structure precursor is 850 degree.
13. the manufacture method of flat radiating tube as claimed in claim 11 is characterized in that, the sintering temperature that forms described master capillary structure precursor is 950 degree.
14. the manufacture method of flat radiating tube as claimed in claim 11 is characterized in that, described master capillary structure material is a powder particle.
15. the manufacture method of flat radiating tube as claimed in claim 11 is characterized in that, described auxiliary capillary structural material is the individual layer silk screen.
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| CN2010101248453A CN102168931B (en) | 2010-02-26 | 2010-02-26 | Flat type radiating pipe and manufacturing method thereof |
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| CN102435084A (en) * | 2011-11-30 | 2012-05-02 | 苏州聚力电机有限公司 | Heat pipe structure capable of controlling sintering position of capillary structure and manufacturing method thereof |
| CN103953798A (en) * | 2014-05-08 | 2014-07-30 | 昆山德泰新材料科技有限公司 | Flat type metal tube and manufacturing technique thereof |
| TWI458930B (en) * | 2011-09-14 | 2014-11-01 | Forcecon Technology Co Ltd | Heat pipe construction and its preparation method for controlling the location of capillary structure sintering |
| CN108871025A (en) * | 2018-07-04 | 2018-11-23 | 江苏凯唯迪科技有限公司 | A kind of flaring heat pipe and preparation method thereof |
| CN110044194A (en) * | 2019-04-29 | 2019-07-23 | 深圳市尚翼实业有限公司 | It is a kind of to reduce the heat pipe that heat transfer hinders |
| CN111542202A (en) * | 2020-04-21 | 2020-08-14 | 华南理工大学 | Inflation type soaking plate and manufacturing method thereof |
| WO2022007032A1 (en) * | 2020-07-06 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Vapor chamber and machining method for vapor chamber |
| CN114440678A (en) * | 2022-02-17 | 2022-05-06 | 郭鹏杰 | Multidimensional heat pipe and electronic equipment |
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| CN114440678A (en) * | 2022-02-17 | 2022-05-06 | 郭鹏杰 | Multidimensional heat pipe and electronic equipment |
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| CN102168931B (en) | 2012-09-19 |
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